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首页> 外文期刊>Advances in Mechanical Engineering >Numerical and Experimental Study on Working Mechanics of Pear-Shaped Casing Swage
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Numerical and Experimental Study on Working Mechanics of Pear-Shaped Casing Swage

机译：梨形套管模压工作机理的数值和实验研究

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摘要

Pear-shaped casing swage (PCS) repair technology is highly efficient in repairing deformed casing and the value of repairing force is a very important parameter for designing and optimizing the casing swage and structure parameters. A new three-dimensional simulation analysis of casing swage in the well and the finite element analysis (FEA) model of 7" API deformed casing and PCS are established based on the elastic-plastic mechanics, the finite element theory, and application of numerical simulation analysis for the actual process of repairing deformed casing. According to the model, the repairing force required to repair the deformed casing is obtained; furthermore, the correlation between the repairing force and confining pressure is obtained. Meanwhile, the repairing test of deformed casing was performed by using PCS in the lab. Experimental results are consistent with simulation results. It indicated that the mechanical model can provide theoretical guidance for design and optimization of the structure of tool and reshaping technological parameters.
机译：梨形套管模锻（PCS）修复技术对变形的套管的修复非常有效，修复力的值对于设计和优化套管模锻和结构参数非常重要。基于弹塑性力学，有限元理论和数值模拟的应用，建立了井筒套管模压的新型三维模拟分析，建立了7“ API变形套管和PCS的有限元分析模型。分析变形套管的实际修复过程，根据该模型，获得了变形套管修复所需的修补力，并得到了修补力与围压的相关性，同时对变形套管进行了修补试验。实验结果与仿真结果吻合，表明该机械模型可为工具结构的设计，优化和工艺参数的重塑提供理论指导。

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